Danfoss SV 1 float valve, modulating liquid-level regulating valve, Kv 0.06, MWP 28 bar
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Product Description
Danfoss SV 1 float valve, code 027B2021 — modulating liquid-level regulating (float) valve for industrial refrigeration and air-conditioning systems using HCFC, HFC or R717 (ammonia). The float senses liquid level and modulates the orifice to hold a constant level. Flow coefficient Kv 0.06 m3/h (Cv 0.07). Maximum working pressure 28 bar (406 psig). Inlet 25.7 mm; balance-pipe connections 1 1/8 in solder or 1 in weld; pilot line OD 9.8 / ID 6.8 mm welding. Low-temperature steel body and float housing. Media temperature -50 to 65 C (-58 to 149 F).
Technical Specifications
- Type
- SV 1 (float valve)
- Code number
- 027B2021
- Product family
- SV liquid-level regulating / float expansion valves
- Function
- Modulating float-operated liquid-level control
- Kv value
- 0.06 m3/h
- Cv value
- 0.07 gal/min
- Maximum working pressure
- 28 bar (406 psig)
- Inlet connection
- 25.7 mm
- Balance pipe connection (solder)
- 1 1/8 in
- Balance pipe connection (weld)
- 1 in
- Pilot line connection
- OD 9.8 / ID 6.8 mm, welding
- Body / float housing material
- Low-temperature steel
- Media temperature range
- -50 to 65 C (-58 to 149 F)
- Refrigerants
- R134a, R22, R401A, R402A, R404A, R407A, R407B, R407C, R407F, R409A, R410A, R421A, R502, R507A, R717
- Net weight
- 6.65 kg
- Gross weight
- 10.074 kg
- Approvals
- CE, EAC, UL
- EAN
- 5702422043621
- Product group
- Liquid level regulating valves
- Approval
- CE
- Balance pipe Solder conn. size
- 1 1/8 in
- Balance pipe Weld conn. size
- 1 in
- Body material
- Low temperature steel
- CE mark
- Yes
- China RoHS compliance
- Out of scope
- Connection Code
- (2001:D23:6;2001:D26:25); (2001:D26:25;2001:D23:6)
- Connection material
- Low temperature, steel
- Cv value [gal/min]
- 0.07 gal/min
- EU RoHS compliance
- Out of scope
- Float housig material
- Low temperature steel
- Fluid Group
- 1
- Inlet connection size [mm]
- 25.7 mm
- Kv value [m³/h]
- 0.06 m³/h
- Max. Working Pressure [bar]
- 28 bar
- Max. Working Pressure [psig]
- 406 psig
- PED category
- I
- Pilot line conn. size [mm]
- OD Ø9,8/ID Ø6,8
- Pilot line connection type
- Welding
- Rated cap. conditions [IMP]
- +41 °F/+89,6 °F, sub. Cooling
- Rated cap. conditions [SI]
- +5 °C/+32 °C, sub. Cooling 4 K
- Rated cap. R404A/R507A [kW]
- 3.7 kW
- Rated cap. R404A/R507A [TR]
- 1.05 TR
- Rated capacity R134a [kW]
- 3.9 kW
- Rated capacity R134a [TR]
- 1.11 TR
- Rated capacity R22 [kW]
- 4.7 kW
- Rated capacity R22 [TR]
- 1.34 TR
- Rated capacity R717 [kW]
- 25 kW
- Rated capacity R717 [TR]
- 7.1 TR
- REACH Candidate List substances
- Lead (CAS no. 7439-92-1)
- Temperature range [°C] [max]
- 65 °C
- Temperature range [°C] [min]
- -50 °C
- Temperature range [°F] [max]
- 149 °F
- Temperature range [°F] [min]
- -58 °F
- UL mark
- Yes
Standards & Compliance
- Size / Series
- Kv 0.06 m3/h
- Material
- Low-temperature steel
- Pressure Rating
- 28 bar
- Temperature Range
- -50 to 65 C
- HS Code
- 8481.80
Compatibility & Fitment
Smallest SV float valve (Kv 0.06). SV 1/3 share the low-temperature-steel float body; SV 3E (027B0081) is the hydrocarbon version. Match orifice/Kv to the level-control duty per the SV data sheet before ordering.
Product Documentation
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Technical guides
- Cross-Referencing Danfoss Refrigeration Components by IMPA and OEM Code
- Danfoss Product Code Decoder — 003Z, 013G, 017B, 023U, 027L, 032F, 060G, 060H, 065B, 065Z, 068Z, 084H, 132F, 148B Series (Complete Reference)
- Danfoss Maneurop MTZ Reciprocating Compressors — Model Range, Voltage Codes and Replacement Guide
Catalogue entry last verified: 2026-08-23. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 027B2021?
- 027B2021 can be ordered from cballast.com as a Danfoss catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Danfoss product?
- The manufacturer part number is 027B2021.
- What is the HS code for 027B2021?
- The customs tariff (HS) code for 027B2021 is 8481.80.
- Who manufactures 027B2021?
- 027B2021 is a Danfoss product in the HVAC & Refrigeration range.
- Is a datasheet available for 027B2021?
- Yes — the 027B2021 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 027B2021?
- The minimum order quantity is 1.
- Is 027B2021 available?
- Yes — 027B2021 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).